JP3001558U - Circulating hot water supply equipment - Google Patents
Circulating hot water supply equipmentInfo
- Publication number
- JP3001558U JP3001558U JP1994001385U JP138594U JP3001558U JP 3001558 U JP3001558 U JP 3001558U JP 1994001385 U JP1994001385 U JP 1994001385U JP 138594 U JP138594 U JP 138594U JP 3001558 U JP3001558 U JP 3001558U
- Authority
- JP
- Japan
- Prior art keywords
- hot water
- water storage
- storage tank
- water supply
- open
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- Domestic Hot-Water Supply Systems And Details Of Heating Systems (AREA)
Abstract
(57)【要約】
【目的】 ボイラー取扱主任者を必要とせず、しかも低
価格な給湯源非屋上設置タイプの循環式給湯設備を得
る。
【構成】 多層階の建物の複数の給湯口６ａに湯を供給
するように配設された温水循環路６と、地上に配置され
た給湯源１と、給湯源１で沸かした湯を温水循環路に流
すポンプ装置５とを設ける。給湯源１を最高使用圧力が
１ｋｇｆ／ｃｍ2以下の複数台の貯湯式電気温水器１ａ
〜１ｄによって構成する。貯湯式電気温水器１ａ〜１ｄ
とポンプ装置５との間に開放型貯湯槽３を配置する。開
放形貯湯槽３及びポンプ装置５を温水循環路６の一部を
構成するように配置する。開放形貯湯槽３の内部に保温
用ヒータ３ｃを配置し、また貯湯槽３に貯湯液面を検出
する液面検出装置Ｓ１、Ｓ２を設ける。液面検出装置の
出力に基づいて貯湯槽３内の液面を所定量に保つように
流量調節弁４を制御する。
(57) [Summary] [Purpose] To obtain a low-priced non-rooftop-type circulating hot water supply system that does not require a boiler handling supervisor. [Structure] A hot water circulation path 6 arranged to supply hot water to a plurality of hot water supply ports 6a of a multi-story building, a hot water supply source 1 arranged on the ground, and hot water circulated by the hot water supply source 1 A pump device 5 for flowing in the passage is provided. The hot water supply source 1 has a maximum operating pressure of 1 kgf / cm 2 or less
˜1d. Hot water storage type electric water heater 1a-1d
The open type hot water storage tank 3 is arranged between the pump device 5 and the pump device 5. The open hot water storage tank 3 and the pump device 5 are arranged so as to form a part of the hot water circulation path 6. A warming heater 3c is arranged inside the open hot water storage tank 3, and liquid level detection devices S1 and S2 for detecting the hot water storage liquid level are provided in the hot water storage tank 3. The flow rate control valve 4 is controlled based on the output of the liquid level detection device so that the liquid level in the hot water storage tank 3 is maintained at a predetermined amount.
Description
【０００１】[0001]
本考案は、循環式給湯設備に関するものであり、特に建物の屋上に給湯源を配 置せずに地上，地下または建物の下層階に配置するタイプ（以下、給湯源非屋上 設置タイプと云う）の循環式給湯設備に関するものである。 The present invention relates to a circulating hot water supply facility, in particular, a type in which a hot water source is not placed on the roof of a building, but is placed above ground, in the basement, or on the lower floors of the building (hereinafter referred to as a non-top-mounted type of hot water source). Related to the circulating hot water supply equipment.
【０００２】[0002]
給湯源を建物の屋上に配置すると、重力を利用して湯を供給できるできる利点 があるものの、建物の上部の荷重が重くなるために、建物を堅牢に作る必要があ る。そこで最近では給湯源非屋上設置タイプの循環式給湯設備が用いられるよう になってきた。図３は給湯源を地上に配置した従来の給湯源非屋上設置タイプの 循環式給湯設備の概略図を示している。この循環式給湯設備では、図示しない給 水源から供給された水をガスや石油を燃料とするボイラーからなる給湯源１０１ で沸かして湯にし、この湯をポンプ装置１０２を用いて温水循環路１０３内に循 環させている。ボイラー１０１は、最高使用圧力を比較的高く設定しているため 、ポンプ装置１０２による湯の吸引や湯の循環に十分に耐えられるように設計さ れている。温水循環路１０３は多層階の建物の各階の複数の蛇口（給湯口）１０ ３ａ…に湯を供給するように配設されている。 Placing the hot water source on the rooftop of the building has the advantage that gravity can be used to supply hot water, but the load on the top of the building is heavy, so the building must be made robust. Therefore, recently, a circulating hot water supply system that does not have a hot water source and is installed on the roof has come into use. Figure 3 shows a schematic diagram of a conventional hot water non-rooftop type circulating hot water supply facility with hot water supply located on the ground. In this circulating hot water supply facility, water supplied from a water supply source (not shown) is boiled into hot water by a hot water supply source 101 composed of a boiler that uses gas or oil as a fuel, and the hot water is circulated in a hot water circulation path 103 using a pump device 102. It is cycled to. Since the maximum operating pressure is set to be relatively high, the boiler 101 is designed to sufficiently withstand the suction of hot water and the circulation of hot water by the pump device 102. The hot water circulation path 103 is arranged to supply hot water to a plurality of faucets (hot water supply ports) 103a on each floor of a multi-story building.
【０００３】 従来は、給湯源を地上，地下または建物の下層階に配置するためには、給湯源 として最高使用圧力の比較的高いボイラーを用いる必要があると考えられていた 。またボイラー１０１の代わりに給水源の給水圧力で湯を給湯する貯湯式電気温 水器を地上に配置したとしても、最高使用圧力が低いために、１０ｍを超える多 層階の蛇口に湯を供給することはできないと考えられていた。Conventionally, it has been considered necessary to use a boiler having a relatively high maximum operating pressure as a hot water supply source in order to arrange the hot water supply source on the ground, underground or in the lower floor of the building. Even if a hot water storage type electric water heater that supplies hot water at the water supply pressure of the water supply source is installed on the ground instead of the boiler 101, the hot water is supplied to the faucet of the multi-story floor that exceeds 10 m because the maximum operating pressure is low. It was considered impossible to do.
【０００４】[0004]
しかしながら、最高使用圧力が高いボイラーを給湯源として用いる従来の循環 式給湯設備では、ボイラーを取扱う専門の管理者（ボイラー取扱主任者）が必要 になるという問題がある上、給湯源の価格が高くなるという問題があった。 However, the conventional circulating hot water supply equipment that uses a boiler with a high maximum operating pressure as a hot water supply source has the problem that a specialized manager (boiler handling chief) who handles the boiler is required, and the price of the hot water supply source is high. There was a problem of becoming.
【０００５】 本考案の目的は、ボイラー取扱主任者を必要としない給湯源非屋上設置タイプ の循環式給湯設備を提供することにある。An object of the present invention is to provide a circulating hot water supply system of a non-top water supply type rooftop installation type that does not require a boiler handling supervisor.
【０００６】 本考案の他の目的は、一般家庭でも使用されている簡易型の貯湯式電気温水器 を用いた給湯源非屋上設置タイプの循環式給湯設備を提供することにある。[0006] Another object of the present invention is to provide a non-rooftop-mounted circulating hot water supply facility using a simple hot water storage type electric water heater that is also used in ordinary households.
【０００７】 本考案の他の目的は、ポンプ装置の価格を安くできる給湯源非屋上設置タイプ の循環式給湯設備を提供することにある。Another object of the present invention is to provide a circulating hot water supply system of a non-top water supply type rooftop installation type that can reduce the price of the pump device.
【０００８】 本考案の更に他の目的は、湯温の低下を防止できる給湯源非屋上設置タイプの 循環式給湯設備を提供することにある。Yet another object of the present invention is to provide a circulating hot water supply system of a non-rooftop installation type that can prevent a decrease in hot water temperature.
【０００９】[0009]
本考案は、多層階の建物の各階に設けられる複数の給湯口に湯を供給するよう に配設された温水循環路と、地上，地下または建物の下層階に配置された給湯源 と、給湯源で沸かした湯を温水循環路に流すポンプ装置とを備えてなる循環式給 湯設備を対象にする。尚各階といっても、全ての階に給湯口が設けられていなけ ればならないわけではなく、給湯口の無い階があってもよいのは勿論である。 The present invention provides a hot water circulation path arranged to supply hot water to a plurality of hot water supply ports provided on each floor of a multi-story building, a hot water supply source arranged on the ground, underground or lower floors of the building, and hot water supply. The target is a circulating hot water supply system equipped with a pump device for flowing hot water boiled at the source into a hot water circulation path. It should be noted that each floor does not necessarily have to have a hot water supply port on all floors, and it goes without saying that there may be floors without a hot water supply port.
【００１０】 本考案では給湯源を、最高使用圧力が１ｋｇｆ／ｃｍ2 以下の複数台の貯湯式 電気温水器から構成する。そして貯湯式電気温水器とポンプ装置との間に開放型 貯湯槽を設ける。In the present invention, the hot water supply source is composed of a plurality of hot water storage type electric water heaters having a maximum working pressure of 1 kgf / cm 2 or less. An open hot water storage tank is installed between the hot water storage type electric water heater and the pump device.
【００１１】 最高使用圧力が１ｋｇｆ／ｃｍ2 以下の貯湯式電気温水器は、現在一般的に市 販されている貯湯式電気温水器であり、その使用にあたっては、ボイラー取扱主 任者をおくことを必要としない。複数台の貯湯式電気温水器の設置の態様は任意 であるが、開放型貯湯槽に接続された共通の給湯管に各貯湯式電気温水器の給湯 口を接続する構造を用いると、接続及び配置が最も簡単になる。The hot water storage type electric water heater with a maximum operating pressure of 1 kgf / cm 2 or less is a hot water storage type electric water heater that is currently on the market, and a boiler handling supervisor must be assigned when using it. Does not need There are no restrictions on how many hot water storage electric water heaters are installed, but if a structure is used in which the hot water inlet of each hot water storage electric water heater is connected to a common hot water supply pipe connected to the open hot water storage tank, connection and Easy to deploy.
【００１２】 ポンプ装置として、並列接続された主ポンプと補助ポンプとを備えたものを用 いる場合に、特に補助ポンプを小形にすると、同じ大きさの主ポンプを並列接続 させたポンプ装置に比べてポンプ装置の価格を安くできる。[0012] When a pump device including a main pump and an auxiliary pump connected in parallel is used as the pump device, particularly when the auxiliary pump is downsized, it is compared to a pump device in which the main pumps of the same size are connected in parallel. The pump device price can be reduced.
【００１３】 ポンプ装置及び開放形貯湯槽を温水循環路に対してどのように配置するかは、 温水循環路の構成に応じて異なってくる。例えば、完全に独立した温水循環路を 用いる場合には、ポンプ装置を開放形貯湯槽と温水循環路の間に配置することに なる。このような温水循環路を用いる場合には、温水循環路の途中に温水循環路 中で湯を循環させる循環用ポンプと温水循環路中の湯を加熱する昇温器とを設け るのが好ましい。このようにすると、温水循環路中の湯の温度の低下を防止する ことができる。尚完全に独立した温水循環路を用いる場合には、開放形貯湯槽内 の湯の温度が低下する。しかしながら開放形貯湯槽内の湯は温水循環路に設けた 昇温器で加熱された湯と混合されるため、実用上大きな問題は生じない。尚開放 形貯湯槽内の湯の温度の低下を防止するために、開放形貯湯槽内に保温用ヒータ を配置してもよいのは勿論である。How to arrange the pump device and the open-type hot water storage tank with respect to the hot water circulation passage depends on the configuration of the hot water circulation passage. For example, if a completely independent hot water circuit is used, the pump device will be placed between the open hot water storage tank and the hot water circuit. When such a hot water circulation path is used, it is preferable to provide a circulation pump for circulating hot water in the hot water circulation path and a temperature raising device for heating the hot water in the hot water circulation path in the middle of the hot water circulation path. . By doing so, it is possible to prevent the temperature of the hot water in the hot water circulation path from decreasing. If a completely independent hot water circulation path is used, the temperature of the hot water in the open hot water storage tank will drop. However, since the hot water in the open-type hot water storage tank is mixed with the hot water heated by the temperature raising device provided in the hot water circulation path, there is no practical problem. Of course, in order to prevent the temperature of the hot water in the open type hot water storage tank from decreasing, a heat retaining heater may be arranged in the open type hot water storage tank.
【００１４】 またポンプ装置及び開放形貯湯槽を温水循環路の一部を構成するように配置す ることもできる。この場合には、ポンプ装置を温水循環路の循環ポンプとして利 用することができるため、必要なポンプの台数を減らすことができ、設備の価格 を下げることができる。またこの場合に、開放形貯湯槽内に保温用ヒータを配置 すると、開放形貯湯槽内の湯の温度の低下と温水循環路内の湯の温度の低下の両 方を１台のヒータで防止することができる。The pump device and the open hot water storage tank may be arranged so as to form a part of the hot water circulation path. In this case, since the pump device can be used as a circulation pump for the hot water circulation path, the number of required pumps can be reduced and the cost of equipment can be reduced. In this case, if a heater for warming is placed in the open hot water storage tank, one heater can prevent both the decrease in the temperature of the hot water in the open hot water storage tank and the decrease in the temperature of the hot water in the hot water circulation path. can do.
【００１５】 開放型貯湯槽に貯湯液面を検出する液面検出装置を設け、給湯源と開放型貯湯 槽との間に液面検出装置の出力に基づいて開放型貯湯槽内の液面を所定量に保つ ように駆動制御される流量調節弁を設けるのが好ましい。このような設備を設け ると、開放型貯湯槽内の湯が溢れたり、枯れたりすることがない。The open type hot water storage tank is provided with a liquid level detection device for detecting the liquid level of the hot water storage, and the liquid level in the open type hot water storage tank is set between the hot water source and the open type hot water storage tank based on the output of the liquid level detection device. It is preferable to provide a flow rate control valve that is drive-controlled so as to maintain a predetermined amount. If such equipment is provided, the hot water in the open hot water storage tank will not overflow or die.
【００１６】[0016]
最高使用圧力が１ｋｇｆ／ｃｍ2 以下の貯湯式電気温水器を使用する場合には 、ボイラー取扱主任者をおくことを義務づけられていない。しかしながら、貯湯 式電気温水器を地上，地下または建物の下層階に配置して使用する場合には、最 高使用圧力が低いために給水源の給水圧力だけで多層階の建物の給湯口に湯を供 給することはできない。また、貯湯式電気温水器の貯湯タンクは非開放型である ため、温水器の貯湯タンク内の湯をポンプ装置を用いて直接温水循環路に送り出 したり、一度送り出した湯を貯湯タンクに戻して湯を循環させることもできない 。When using a hot water storage type electric water heater with a maximum working pressure of 1 kgf / cm 2 or less, it is not obligatory to have a boiler handling supervisor. However, when the hot water storage type electric water heater is used above ground, underground, or on the lower floors of the building, the maximum operating pressure is low, so the hot water at the hot water supply port of the building on the multi-story floor is used only by the water pressure of the water source. Cannot be supplied. Also, since the hot water storage tank of the hot water storage type electric water heater is a non-open type, the hot water in the hot water storage tank of the water heater can be directly sent to the hot water circulation path using a pump device or the hot water once sent to the hot water storage tank. It is not possible to return it and circulate the hot water.
【００１７】 これに対して開放型貯湯槽は内部の湯をポンプ装置を用いて直接送り出しても 槽内の圧力が高くなることはなく、また一度送り出した湯を開放型貯湯槽に戻し て湯を循環させることもできる。そこで本考案では、貯湯式電気温水器とポンプ 装置との間に開放型貯湯槽を設けることにより、貯湯式電気温水器内の湯を多層 階の建物の各階の複数の給湯口にポンプ装置を用いて供給できるようにした。即 ち本考案の循環式給湯設備では貯湯式電気温水器内の湯を開放型貯湯槽に貯湯し 、貯湯した湯をポンプ装置を用いて温水循環路に流すため、貯湯式電気温水器か らなる給湯源を地上，地下または建物の下層階に配置することができ、ボイラー 取扱主任者を必要としない低価格な給湯源非屋上設置タイプの循環式給湯設備を 得ることができる。また本考案では、複数台の貯湯式電気温水器により給湯源を 構成するため、一部の貯湯式電気温水器に故障が生じても、正常な貯湯式電気温 水器から湯を供給できるため、湯を使用できない状態が発生する率が少なくなり 、信頼性が高くなる。On the other hand, in the open type hot water storage tank, even if the internal hot water is directly sent out by using a pump device, the pressure in the tank does not increase, and the hot water once sent is returned to the open hot water storage tank. Can also be circulated. Therefore, in the present invention, by providing an open-type hot water storage tank between the hot water storage type electric water heater and the pump device, the hot water in the hot water storage type electric water heater is provided with a pump device at a plurality of hot water supply ports on each floor of a multi-story building. It was made possible to supply it. In the circulating hot water supply system of the present invention, the hot water in the hot water storage electric water heater is stored in the open hot water storage tank and the hot water is flowed to the hot water circulation path using the pump device. The hot water source can be located above ground, underground or on the lower floors of the building, and it is possible to obtain a low-priced non-rooftop type circulating hot water supply facility that does not require a boiler handling supervisor. Further, in the present invention, since the hot water supply source is composed of a plurality of hot water storage electric water heaters, hot water can be supplied from a normal hot water storage electric water heater even if some hot water storage electric water heaters fail. , The probability that hot water cannot be used will decrease and reliability will increase.
【００１８】[0018]
以下、本考案の実施例を図面を参照して詳細に説明する。図１は本考案の一実 施例の循環式給湯設備を示す概略図である。本図において１は給湯源であり、２ は自動混合弁であり、３は開放型貯湯槽であり、４は流量調節弁であり、５はポ ンプ装置であり、６は温水循環路である。給湯源１は４台の貯湯式電気温水器１ ａ〜１ｄにより構成されている。これらの貯湯式電気温水器１ａ〜１ｄは、最高 使用圧力が１kgf/cm2 以下の貯湯式電気温水器である。各貯湯式電気温水器１ａ 〜１ｄの図示しない貯湯タンクの給水口には、ストレーナや減圧弁を介して制圧 された水が管路Ｌ１を通して供給されている。そして貯湯式電気温水器１ａ〜１ ｄの図示しない貯湯タンクの給湯口は、給湯管を構成する共通の管路Ｌ２にそれ ぞれ接続されて、相互に並列接続されている。Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. FIG. 1 is a schematic view showing a circulating hot water supply system according to an embodiment of the present invention. In the figure, 1 is a hot water supply source, 2 is an automatic mixing valve, 3 is an open type hot water storage tank, 4 is a flow control valve, 5 is a pump device, and 6 is a hot water circulation path. . The hot water supply source 1 is composed of four hot water storage type electric water heaters 1a to 1d. These hot water storage type electric water heaters 1a to 1d are hot water storage type electric water heaters having a maximum working pressure of 1 kgf / cm 2 or less. The water, which has been suppressed through a strainer or a pressure reducing valve, is supplied to the water supply port of a hot water storage tank (not shown) of each hot water storage type electric water heater 1a to 1d through a pipe line L1. The hot water supply ports of hot water storage tanks (not shown) of the hot water storage type electric water heaters 1a to 1d are respectively connected to a common pipe line L2 forming a hot water supply pipe, and are connected in parallel to each other.
【００１９】 この貯湯式電気温水器１ａ〜１ｄは、いずれも地上，地下または多層階の建物 の下層階（１階や１階の屋上等）に配置される。自動混合弁２は、並列接続され た２台の自動混合弁により構成されている。各自動混合弁には、管路Ｌ２から湯 が供給され、管路Ｌ３から水が供給され、２台の自動混合弁の出口は管路Ｌ４に 接続されている。尚自動混合弁２は、給湯源１から開放型貯湯槽３に送られる湯 が適当な温度になるように湯に給水源からの水を混合させる公知の弁である。Each of the hot water storage type electric water heaters 1a to 1d is arranged on a lower floor (a first floor or a roof of the first floor) of a building on the ground, underground or multi-story. The automatic mixing valve 2 is composed of two automatic mixing valves connected in parallel. Hot water is supplied to each automatic mixing valve from a pipe line L2, water is supplied from a pipe line L3, and the outlets of the two automatic mixing valves are connected to a pipe line L4. The automatic mixing valve 2 is a known valve that mixes the hot water supplied from the hot water supply source 1 to the open type hot water storage tank 3 with the water from the hot water supply source so that the hot water has an appropriate temperature.
【００２０】 開放型貯湯槽３は、自動混合弁２から出た湯を貯蔵するものである。この開放 型貯湯槽３は貯湯式電気温水器１ａ〜１ｄの近くに配置されている。開放型貯湯 槽３は、槽内の湯がポンプ装置５によって吸い出されても槽内に負圧がかからな いようにするために、貯湯槽３の上部に開放通路を設けて、内部空間を外部の大 気空間と連通させている。本実施例の開放型貯湯槽３は、ステンレス製のタンク からなり、その側壁の下部には湯を温水循環路６に送り出す出口３ａと、この出 口３ａよりも上方の位置に設けられて温水循環路６から戻る湯を内部に導入する 入口３ｂとが設けられている。また開放型貯湯槽３の内部の下側の空間には、槽 内の湯を一定の温度範囲に保つように通電制御される保温用ヒータ３ｃが配置さ れている。尚図示していないが、貯湯槽３の側壁には貯湯槽３内の湯の温度を測 定する温度センサが取付けられており、図示しないヒータ制御装置はこの温度セ ンサの出力に基づいて、保温用ヒータ３ｃへの通電を制御する。The open type hot water storage tank 3 stores hot water discharged from the automatic mixing valve 2. The open type hot water storage tank 3 is arranged near the hot water storage type electric water heaters 1a to 1d. The open type hot water storage tank 3 has an open passage at the upper part of the hot water storage tank 3 in order to prevent negative pressure from being applied to the hot water even if the hot water in the tank is sucked by the pump device 5. The space communicates with the outside atmosphere. The open-type hot water storage tank 3 of this embodiment is made of a stainless steel tank, and an outlet 3a for sending hot water to the hot water circulation path 6 is provided at the lower portion of the side wall thereof, and a hot water is provided above the outlet 3a. An inlet 3b for introducing hot water returning from the circulation path 6 into the inside is provided. Further, in the lower space inside the open type hot water storage tank 3, there is disposed a heat retention heater 3c whose energization is controlled so as to keep the hot water in the tank within a certain temperature range. Although not shown, a temperature sensor for measuring the temperature of the hot water in the hot water storage tank 3 is attached to the side wall of the hot water storage tank 3, and the heater control device (not shown) uses the temperature sensor output based on the output of this temperature sensor. The energization of the heat retention heater 3c is controlled.
【００２１】 また貯湯槽３の側壁には高さ方向に間隔を開けて液面検出用の２つの液面セン サＳ１及びＳ２が取付けられている。これらの液面センサＳ１及びＳ２は、貯湯 槽３内に電極を突出させて電流値やインピーダンス等の変化により液面の有無を 検出する液面検出装置を構成している。液面センサＳ１は、湯の液面の上限レベ ルを検出し、液面センサＳ２は湯の液面の下限レベルを検出する。これらの液面 センサＳ１及びＳ２の出力で、管路Ｌ４に設けた流量調節弁４が制御される。流 量調節弁４は、開放型貯湯槽３内の液面を所定量に保つように制御される。具体 的には、液面が下限レベルＬより少なくなったことを液面センサＳ２が検出する と流量調節弁４が開かれ、液面が上限レベルＨに達したことを液面センサＳ１が 検出すると流量調節弁４が閉じられる。On the side wall of the hot water storage tank 3, two liquid level sensors S1 and S2 for liquid level detection are attached at intervals in the height direction. These liquid level sensors S1 and S2 form a liquid level detection device that detects the presence or absence of the liquid level by changing the current value, impedance, etc. by projecting electrodes into the hot water storage tank 3. The liquid level sensor S1 detects the upper limit level of the liquid level of the hot water, and the liquid level sensor S2 detects the lower limit level of the liquid level of the hot water. The outputs of these liquid level sensors S1 and S2 control the flow rate control valve 4 provided in the conduit L4. The flow rate control valve 4 is controlled so as to maintain the liquid level in the open hot water storage tank 3 at a predetermined amount. Specifically, when the liquid level sensor S2 detects that the liquid level is lower than the lower limit level L, the flow rate control valve 4 is opened and the liquid level sensor S1 detects that the liquid level has reached the upper limit level H. Then, the flow rate control valve 4 is closed.
【００２２】 ポンプ装置５は、矢印に示す方向に開放型貯湯槽３内の湯を開放型貯湯槽３の 出口３ａから入口３ｂに循環させる位置に配置されている。即ち本実施例では、 ポンプ装置５及び開放型貯湯槽３が温水循環路６の一部を構成するように配置さ れている。ポンプ装置５は、並列接続された主ポンプ５ａと補助ポンプ５ｂとを 備えている。各ポンプ５ａ、５ｂの両側にはポンプの交換や点検の際に閉められ るバルブＶ１〜Ｖ４が配置されており、また管路Ｌ５と間にはポンプ側への逆流 を防止するために逆止弁ＲＶ１及ＲＶ２が取付けられている。補助ポンプ５ｂは 、主ポンプ５ａが故障した場合や、主ポンプ５ａの点検時に駆動されるものであ る。本実施例では、補助ポンプ５ｂとして主ポンプ５ａより循環圧力の小さい小 形で安価なポンプを用いている。ポンプ装置５は、常時は主ポンプ５ａを作動さ せており、主ポンプ５ａが故障した際には、自動的に補助ポンプ５ｂを作動させ るように、図示しない制御装置によって制御されている。The pump device 5 is arranged at a position where the hot water in the open type hot water storage tank 3 is circulated from the outlet 3 a to the inlet 3 b of the open type hot water storage tank 3 in the direction indicated by the arrow. That is, in the present embodiment, the pump device 5 and the open hot water storage tank 3 are arranged so as to form a part of the hot water circulation path 6. The pump device 5 includes a main pump 5a and an auxiliary pump 5b connected in parallel. Valves V1 to V4, which are closed when replacing or inspecting the pumps, are arranged on both sides of each pump 5a, 5b, and a check valve is also provided between the pipes L5 and L5 to prevent backflow to the pump side. Valves RV1 and RV2 are mounted. The auxiliary pump 5b is driven when the main pump 5a fails or when the main pump 5a is inspected. In the present embodiment, as the auxiliary pump 5b, a small and inexpensive pump having a circulating pressure smaller than that of the main pump 5a is used. The pump device 5 normally operates the main pump 5a, and is controlled by a control device (not shown) so as to automatically operate the auxiliary pump 5b when the main pump 5a fails.
【００２３】 温水循環路６は、多層階（本実施例では５階）の建物の複数の給湯口（蛇口） ６ａ…に湯を供給するように管路Ｌ６〜Ｌ８からなる分配路を備えており、各管 路Ｌ６〜Ｌ８は建物の最も上の位置で管路Ｌ９に結合されている。管路Ｌ９は、 開放型貯湯槽３の入口３ｂに接続されている。The hot water circulation passage 6 is provided with a distribution passage formed of pipe lines L6 to L8 so as to supply hot water to a plurality of hot water inlets (faucets) 6a of a multi-story building (fifth floor in this embodiment). The pipelines L6 to L8 are connected to the pipeline L9 at the uppermost position of the building. The pipe line L9 is connected to the inlet 3b of the open type hot water storage tank 3.
【００２４】 本実施例の循環式給湯設備ではポンプ装置５を常時作動させて、温水循環路６ 内の湯の温度を保温用ヒータ３ｃにより一定の温度範囲に保っている。そして蛇 口６ａから湯が放出されて開放型貯湯槽３内の液面が低下し、開放型貯湯槽３の 下限レベルＬを下回ると、流量調節弁４が開いて貯湯式電気温水器１ｄから開放 型貯湯槽３に湯が供給される。In the circulating hot water supply system of this embodiment, the pump device 5 is constantly operated to keep the temperature of the hot water in the hot water circulation path 6 within a certain temperature range by the heater 3c. Then, when hot water is discharged from the faucet 6a and the liquid level in the open type hot water storage tank 3 drops, and when it falls below the lower limit level L of the open type hot water storage tank 3, the flow rate control valve 4 opens and the hot water storage type electric water heater 1d Hot water is supplied to the open hot water storage tank 3.
【００２５】 図２は本考案の他の実施例の循環式給湯設備を示す概略図である。本実施例に おいて、図１の実施例と同様の部材には、図１に示した符号に１０を加えた数の 符号を付して説明を省略する。図１の実施例では、ポンプ装置及び開放型貯湯槽 が温水循環路の一部を構成しているが、本実施例の循環式給湯設備では、温水循 環路１６が完全に独立している。そのため本実施例では、温水循環路１６を閉ル ープ状に構成し、ポンプ装置１５を用いて開放型貯湯槽１３内の湯を温水循環路 １６に流している。そして温水循環路１６の上部には温水循環路１６内に湯を循 環させる循環ポンプ１６ｂと温水循環路１６内の湯を一定の温度範囲に保つ昇温 器１６ｃが設けられている。FIG. 2 is a schematic view showing a circulating hot water supply system according to another embodiment of the present invention. In the present embodiment, the same members as those in the embodiment of FIG. 1 are designated by the reference numerals shown in FIG. In the embodiment of FIG. 1, the pump device and the open type hot water storage tank constitute a part of the hot water circulation passage, but in the circulation type hot water supply equipment of this embodiment, the hot water circulation passage 16 is completely independent. . Therefore, in this embodiment, the hot water circulation passage 16 is formed in a closed loop shape, and the hot water in the open hot water storage tank 13 is caused to flow to the hot water circulation passage 16 by using the pump device 15. A circulation pump 16b that circulates the hot water in the hot water circulation passage 16 and a temperature raising device 16c that keeps the hot water in the hot water circulation passage 16 within a certain temperature range are provided above the hot water circulation passage 16.
【００２６】 本実施例でも、最高使用圧力が１ｋｇｆ／ｃｍ2 以下の貯湯式電気温水器１１ ａ，１１ｂからなる給湯源１１を地上に配置して、給湯源１１とポンプ装置１５ との間に開放型貯湯槽１３を設けている。そして本実施例では、開放型貯湯槽１ ３内の液面を検出する液面検出装置を構成する液面センサＳ１及びＳ２を、開放 型貯湯槽１３内に配置している。このようにすると、液面の検出精度が高くなる 。ポンプ装置１５は、開放型貯湯槽１３と温水循環路１６とを接続する管路Ｌ１ ４の途中に設けられている。図１の実施例では、ポンプ装置５が、温水循環路の 循環ポンプの機能も果たしているため、ポンプ装置５は常時運転状態あるが、本 実施例では、湯が必要な場合にだけ、ポンプ装置１５を作動させる。そこでポン プ装置１５を作動させるか否かを判定する機能を備えたポンプ運転制御装置１７ が設けられている。ポンプ運転制御装置１７は、湯が使用されて温水循環路１６ 内の圧力が下がったことを、管路Ｌ１４に設けた圧力計で検出し、圧力の低下を 検出するとポンプ装置１５を作動させるように構成されている。図には、ポンプ 装置１５を１台のポンプの記号で示してあるが、実際には図１の実施例と同様に 、主ポンプと補助ポンプの２台のポンプでポンプ装置１５は構成されている。Also in this embodiment, the hot water supply source 11 including the hot water storage type electric water heaters 11 a and 11 b having the maximum working pressure of 1 kgf / cm 2 or less is arranged on the ground, and is placed between the hot water supply source 11 and the pump device 15. An open type hot water storage tank 13 is provided. In this embodiment, the liquid level sensors S1 and S2, which form a liquid level detection device for detecting the liquid level in the open hot water storage tank 13, are arranged in the open hot water storage tank 13. By doing so, the detection accuracy of the liquid surface becomes high. The pump device 15 is provided in the middle of the pipe line L14 connecting the open hot water storage tank 13 and the hot water circulation path 16. In the embodiment of FIG. 1, since the pump device 5 also functions as a circulation pump of the hot water circulation path, the pump device 5 is always in the operating state. However, in this embodiment, the pump device 5 is operated only when hot water is required. Activate 15. Therefore, a pump operation control device 17 having a function of determining whether to operate the pump device 15 is provided. The pump operation control device 17 detects that the pressure in the hot water circulation passage 16 has dropped due to the use of hot water with the pressure gauge provided in the pipe line L14, and activates the pump device 15 when detecting the decrease in pressure. Is configured. In the figure, the pump device 15 is shown by the symbol of one pump, but actually, as in the embodiment of FIG. 1, the pump device 15 is composed of two pumps, a main pump and an auxiliary pump. There is.
【００２７】 この実施例の循環式給湯設備では循環ポンプ１６ｂを常時に作動させて、矢印 に示す方向に温水循環路１６内に湯を循環させている。そして湯が使用されない 場合に、温水循環路１６内の湯の温度が低下するのを昇温器１６ｃにより防いで いる。尚開放型貯湯槽１３内の湯の温度が低下するのを防止するために、図１の 実施例と同様に開放型貯湯槽１３内に保温用ヒータを配置してもよいのは勿論で ある。給湯口としての蛇口１６ａから湯が放出されると、ポンプ運転制御装置１ ７が圧力の低下を検出してポンプ装置１５が作動し、開放型貯湯槽１３内の湯が 温水循環路１６内に供給される。In the circulation type hot water supply equipment of this embodiment, the circulation pump 16b is always operated to circulate the hot water in the hot water circulation passage 16 in the direction shown by the arrow. When the hot water is not used, the temperature riser 16c prevents the temperature of the hot water in the hot water circulation passage 16 from decreasing. Incidentally, in order to prevent the temperature of the hot water in the open type hot water storage tank 13 from decreasing, it is needless to say that a warming heater may be arranged in the open type hot water storage tank 13 as in the embodiment of FIG. . When hot water is discharged from the faucet 16a serving as a hot water supply port, the pump operation control device 17 detects a decrease in pressure and the pump device 15 operates, so that the hot water in the open hot water storage tank 13 enters the hot water circulation path 16. Supplied.
【００２８】[0028]
本考案によれば、貯湯式電気温水器内の湯を開放型貯湯槽に貯湯し、貯湯した 湯をポンプ装置を用いて温水循環路に流すため、貯湯式電気温水器からなる給湯 源を地上，地下または建物の下層階に配置することができ、ボイラー取扱主任者 を必要としない低価格な給湯源非屋上設置タイプの循環式給湯設備を得ることが できる。また本考案では、複数台の貯湯式電気温水器により給湯源を構成するた め、一部の貯湯式電気温水器に故障が生じても、正常な貯湯式電気温水器から湯 を供給でき、湯を使用できない状態が発生する率が少なくなって、信頼性が高く なる。 According to the present invention, the hot water in the hot water storage type electric water heater is stored in the open hot water storage tank, and the hot water stored is supplied to the hot water circulation path using the pump device. ， It can be installed in the basement or the lower floor of the building, and it is possible to obtain a low-priced non-rooftop type circulating hot water supply system that does not require the boiler handling supervisor. Further, in the present invention, since the hot water supply source is composed of a plurality of hot water storage electric water heaters, even if some hot water storage electric water heaters fail, hot water can be supplied from the normal hot water storage electric water heaters. The reliability that the hot water cannot be used is reduced and the reliability is improved.
【図１】 本考案の一実施例の循環式給湯設備を示す概
略図である。FIG. 1 is a schematic view showing a circulating hot water supply system according to an embodiment of the present invention.
【図２】 本考案の他の実施例の循環式給湯設備を示す
概略図である。FIG. 2 is a schematic view showing a circulating hot water supply system according to another embodiment of the present invention.
【図３】 従来の循環式給湯設備を示す概略図である。FIG. 3 is a schematic view showing a conventional circulating hot water supply facility.
１，１１，１０１ 給湯源 ３，１３ 開放型貯湯槽 ４，１４ 流量調節弁 ５，１５，１０２ ポンプ装置 ５ａ 主ポンプ ５ｂ 補助ポンプ ６，１６，１０３ 温水循環路 ６ａ，１６ａ，１０３ａ 給湯口（蛇口） 1,11,101 Hot water supply source 3,13 Open hot water storage tank 4,14 Flow rate control valve 5,15,102 Pump device 5a Main pump 5b Auxiliary pump 6,16,103 Hot water circulation path 6a, 16a, 103a Hot water inlet (faucet )
Claims (5)
湯口に湯を供給するように配設された温水循環路と、地
上，地下または建物の下層階に配置された給湯源と、前
記給湯源で沸かした湯を前記温水循環路に流すポンプ装
置とを備えてなる循環式給湯設備において、 前記給湯源は最高使用圧力が１ｋｇｆ／ｃｍ2 以下の複
数台の貯湯式電気温水器から構成され、 前記複数台の貯湯式電気温水器と前記ポンプ装置との間
に開放型貯湯槽が設けられていることを特徴とする循環
式給湯設備。1. A hot water circulation passage arranged to supply hot water to a plurality of hot water outlets provided on each floor of a multi-story building, and a hot water supply source arranged on the ground, underground or lower floors of the building. A circulating hot water supply facility comprising a pump device for flowing hot water boiled from the hot water supply source into the hot water circulation path, wherein the hot water supply source has a plurality of hot water storage electric water heaters having a maximum working pressure of 1 kgf / cm 2 or less. A circulating hot water supply facility comprising an open hot water storage tank provided between the plurality of hot water storage electric water heaters and the pump device.
プと補助ポンプとを備えており、前記補助ポンプは前記
主ポンプよりも小形である請求項１に記載の循環式給湯
設備。2. The circulating hot water supply equipment according to claim 1, wherein the pump device includes a main pump and an auxiliary pump connected in parallel, and the auxiliary pump is smaller than the main pump.
給湯口に湯を供給するように配設された温水循環路と、
地上，地下または建物の下層階に配置された給湯源と、
前記給湯源で沸かした湯を前記温水循環路に流すポンプ
装置とを備えてなる循環式給湯設備において、 前記給湯源は最高使用圧力が１ｋｇｆ／ｃｍ2 以下の複
数台の貯湯式電気温水器から構成され、 前記複数台の貯湯式電気温水器と前記ポンプ装置との間
に開放型貯湯槽が設けられ、 前記ポンプ装置は前記開放形貯湯槽と前記温水循環路と
の間に配置され、 前記温水循環路の途中に該温水循環路中で湯を循環させ
る循環用ポンプと該温水循環路中の湯を加熱する昇温器
とが設けられ、 前記開放型貯湯槽には貯湯液面を検出する液面検出装置
が設けられ、 前記給湯源と前記開放型貯湯槽との間に前記液面検出装
置の出力に基づいて前記開放型貯湯槽内の液面を所定量
に保つように駆動制御される流量調節弁が設けられてい
ることを特徴とする循環式給湯設備。3. A hot water circulation passage arranged to supply hot water to a plurality of hot water inlets provided on each floor of a multi-story building.
A hot water source located on the ground, underground or lower floors of the building,
A circulating hot water supply facility comprising a pump device for flowing hot water boiled from the hot water supply source to the hot water circulation path, wherein the hot water supply source is a plurality of hot water storage type electric water heaters having a maximum working pressure of 1 kgf / cm 2 or less. An open hot water storage tank is provided between the plurality of hot water storage type electric water heaters and the pump device, the pump device is disposed between the open hot water storage tank and the hot water circulation path, and A circulating pump for circulating hot water in the hot water circulation passage and a temperature raising device for heating the hot water in the hot water circulation passage are provided in the middle of the hot water circulation passage, and the open type hot water storage tank detects a hot water storage liquid level. A liquid level detection device is provided, and drive control is performed between the hot water supply source and the open type hot water storage tank so as to maintain the liquid level in the open type hot water storage tank at a predetermined amount based on the output of the liquid level detection device. Flow control valve is provided Circulation type hot water supply equipment.
が配置されていることを特徴とする請求項３に記載の循
環式給湯設備。4. The circulating hot water supply equipment according to claim 3, wherein a warming heater is arranged inside the open hot water storage tank.
給湯口に湯を供給するように配設された温水循環路と、
地上，地下または建物の下層階に配置された給湯源と、
前記給湯源で沸かした湯を前記温水循環路に流すポンプ
装置とを備えてなる循環式給湯設備において、 前記給湯源は最高使用圧力が１ｋｇｆ／ｃｍ2 以下の複
数台の貯湯式電気温水器から構成され、 前記複数台の貯湯式電気温水器と前記ポンプ装置との間
に開放型貯湯槽が設けられ、 前記開放形貯湯槽及び前記ポンプ装置は前記温水循環路
の一部を構成するように配置され、 前記開放形貯湯槽の内部には保温用ヒータが配置され、 前記開放型貯湯槽には貯湯液面を検出する液面検出装置
が設けられ、 前記給湯源と前記開放型貯湯槽との間に前記液面検出装
置の出力に基づいて前記開放型貯湯槽内の液面を所定量
に保つように駆動制御される流量調節弁が設けられてい
ることを特徴とする循環式給湯設備。5. A hot water circulation passage arranged to supply hot water to a plurality of hot water inlets provided on each floor of a multi-story building.
A hot water source located on the ground, underground or lower floors of the building,
A circulating hot water supply facility comprising a pump device for flowing hot water boiled from the hot water supply source to the hot water circulation path, wherein the hot water supply source is a plurality of hot water storage type electric water heaters having a maximum working pressure of 1 kgf / cm 2 or less. An open hot water storage tank is provided between the plurality of hot water storage type electric water heaters and the pump device, and the open hot water storage tank and the pump device constitute a part of the hot water circulation path. A warming heater is disposed inside the open hot water storage tank, a liquid level detection device for detecting a hot water storage liquid level is provided in the open hot water storage tank, and the hot water supply source and the open hot water storage tank are provided. A circulating hot water supply facility is provided with a flow rate control valve that is driven and controlled so as to keep the liquid level in the open hot water storage tank at a predetermined amount based on the output of the liquid level detection device. .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1994001385U JP3001558U (en) | 1994-03-01 | 1994-03-01 | Circulating hot water supply equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1994001385U JP3001558U (en) | 1994-03-01 | 1994-03-01 | Circulating hot water supply equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP3001558U true JP3001558U (en) | 1994-08-30 |
Family
ID=43137535
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1994001385U Expired - Lifetime JP3001558U (en) | 1994-03-01 | 1994-03-01 | Circulating hot water supply equipment |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3001558U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2013011399A (en) * | 2011-06-29 | 2013-01-17 | Mitsubishi Heavy Ind Ltd | Water heater and method for controlling the same |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5710228B2 (en) * | 1972-05-09 | 1982-02-25 | ||
| JPS5741532A (en) * | 1980-08-25 | 1982-03-08 | Furukawa Electric Co Ltd:The | Hot-water feeding method |
| JPS626610B2 (en) * | 1982-10-07 | 1987-02-12 | Nippon Steel Corp | |
| JPS6370032A (en) * | 1986-09-08 | 1988-03-30 | Nippon Benkan Kogyo Kk | Open type degassing system in circulation type hot water feeding facility |
-
1994
- 1994-03-01 JP JP1994001385U patent/JP3001558U/en not_active Expired - Lifetime
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5710228B2 (en) * | 1972-05-09 | 1982-02-25 | ||
| JPS5741532A (en) * | 1980-08-25 | 1982-03-08 | Furukawa Electric Co Ltd:The | Hot-water feeding method |
| JPS626610B2 (en) * | 1982-10-07 | 1987-02-12 | Nippon Steel Corp | |
| JPS6370032A (en) * | 1986-09-08 | 1988-03-30 | Nippon Benkan Kogyo Kk | Open type degassing system in circulation type hot water feeding facility |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2013011399A (en) * | 2011-06-29 | 2013-01-17 | Mitsubishi Heavy Ind Ltd | Water heater and method for controlling the same |
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